Useful tips for everyday
Can a MacBook get tracked? If you can’t find your Mac or haven’t set up Find My. Find My Mac is the only Apple service…
How do video games store data? Typically, the game data and the user data are separated and often stored in very different places, e.g. game…
How does fair queuing work? Fair queuing uses one queue per packet flow and services them in rotation, such that each flow can “obtain an…
How do you increasing upsells and cross sells? Add Upsells and Cross-Sells to Your Post-Purchase Email Campaigns. If you find the previous tactic is too…
How do you write a follow up email for a job application? Write a follow-up email directly to the hiring manager Use a clear subject…
How does index increase performance? Effective indexes are one of the best ways to improve performance in a database application. Without an index, the SQL…
How to connect the RTC module to the Arduino? Connect your Real Time Clock module to your Arduino as in the schematics below. Working with…
Why does vsftpd service not start saying systemd? Nov 20 17:50:06 my-vm systemd [1]: vsftpd.service: Main process exited, code=exited, status=2/INVALIDARGUMENT Nov 20 17:50:06 my-vm systemd…
How to restrict users to SCP and SFTP? SCP/SFTP -> SSHD -> Call sftpd subsystem -> Requires a shell -> User can login to server…
How do you store real numbers? Real numbers are stored in the computer using a similar principle to standard form. Instead of using a power…